%0 Journal Article %A Aposporidis, Alexis %A Vassilevski, Panayot S. %A Veneziani, Alessandro %T Multigrid preconditioning of the non-regularized augmented Bingham fluid problem %J Electronic transactions on numerical analysis %D 2014 %P 42-61 %V 41 %I mathdoc %U http://geodesic.mathdoc.fr/item/ETNA_2014__41__a22/ %G en %F ETNA_2014__41__a22